Journal
BIORESOURCE TECHNOLOGY
Volume 97, Issue 18, Pages 2481-2484Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2005.10.003
Keywords
essential oil composition; Chloroxylon swietenia; sesquiterpenes; pregeijerene; Aedes aegypti; Anopheles stephensi
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The laboratory bioassay of the essential oil and the isolated compounds from Chloroxylon swietenia against Aedes aegypti and Anopheles stephensi was carried out to evaluate the larvicidal activity. LC50 value estimated for A. aegypti and An. stephensi were 16.5 and 14.9 mu g/ml and 20.2 and 19 mu g/ml for leaf and stem oils, respectively. The three sesquiterpenes pregeijerene, geijerene and germacrene D were isolated and their Larvicidal activity was evaluated. Pregeijerene and geijerene were observed for the first time in the volatile constituents of C swietenia, however, leaves contained higher amount of geijerene compared to stems. (c) 2005 Elsevier Ltd. All rights reserved.
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